source: xtideuniversalbios/trunk/Assembly_Library/Inc/DosFunctions.inc@ 594

Last change on this file since 594 was 592, checked in by Krister Nordvall, 6 years ago

Changes:

  • The problem with NASM in the previous revision (r591) has been fixed.
  • The colors used by the boot menu and hotkey bar can now be customized by selecting one of a number of pre-defined color themes. Suggestions for additional themes are more than welcome!
  • Large builds are now 10 KB. Small builds are still 8 KB with the exception of the Tiny build which is now 4 KB. In other words, builds are now as small as possible to make it easier to combine them with other BIOSes.
  • Added code to the library to improve drive error handling. XTIDECFG can now handle "Drive Not Ready" errors.
  • Fixed a couple of potential bugs in AtaID.asm (AtaID_GetMaxPioModeToAXandMinCycleTimeToCX); 1) ATA1.bPioMode was treated as a WORD variable. 2) ATA2.bPIOSupp was assumed to be non-zero which would result in PIO mode 3 being returned if the assumption was wrong.
  • Made the same changes in the equivalent function used by BIOSDRVS (DisplayPioModeInformationUsingAtaInfoFromDSBX in AtaInfo.asm).
  • Fixed a bug from r587 in PDC20x30.asm in PDC20x30_GetMaxPioModeToALandMinPioCycleTimeToBX.
  • Fixed a bug from r523 in XTIDECFG where Auto Configure would only set the IRQ on one IDE interface on AT-builds.
  • XTIDECFG will now restore the default settings for the "Serial port virtual device" when reselecting it in the list of device types. This makes it behave consistently for all device types.
  • The eAAM macro is now used regardless if USE_UNDOC_INTEL is defined or not because it is apparently supported on all processors including the NEC V20/V30 CPUs.
  • Renamed the EXCLUDE_FROM_XTIDE_UNIVERSAL_BIOS define to EXCLUDE_FROM_XUB.
  • Added a define to exclude unused library code from BIOSDRVS (EXCLUDE_FROM_BIOSDRVS). This makes it a lot smaller than in previous revisions.
  • All unnecessary CLD-instructions are now under a new define 'CLD_NEEDED' which is only enabled for the BIOS. It is disabled for XTIDECFG and BIOSDRVS but can be enabled if needed by adding this define to the respective makefile. This change was made because these unnecessary instructions are wasteful and should never be needed. In fact, they only serve to hide bugs (in other peoples code) which I strongly believe should be avoided. I recommend people making their own BIOSes from source to not use this define as it's extremely unlikely to be needed.
  • Updated the copyright info in SerDrive and changed an URL to point to the new site.
  • Updated the copyright info and version number in BIOSDRVS.
  • Updated the copyright info in XTIDECFG.
  • Optimizations in general.
File size: 2.6 KB
RevLine 
[41]1; Project name : AssemblyLibrary
2; Description : Defines for MS-DOS functions.
3%ifndef DOS_FUNCTIONS_INC
4%define DOS_FUNCTIONS_INC
5
6; DOS interrupts
7DOS_INTERRUPT_21h EQU 21h
[592]8DOS_CTRL_C_CTRL_BREAK_HANDLER_23h EQU 23h
[41]9DOS_CRITICAL_ERROR_HANDLER_24h EQU 24h
[85]10DOS_TSR_MULTIPLEX_INTERRUPT_2Fh EQU 2Fh
[41]11
[589]12; DOS functions
13WRITE_CHARACTER_TO_STANDARD_OUTPUT EQU 02h ; DOS 1+
14WRITE_STRING_TO_STANDARD_OUTPUT EQU 09h ; DOS 1+
15SELECT_DEFAULT_DRIVE EQU 0Eh ; DOS 1+
16GET_CURRENT_DEFAULT_DRIVE EQU 19h ; DOS 1+
17SET_INTERRUPT_VECTOR EQU 25h ; DOS 1+
18GET_DISK_TRANSFER_AREA_ADDRESS EQU 2Fh ; DOS 2+
19GET_DOS_VERSION EQU 30h ; DOS 2+
20GET_DOS_DRIVE_PARAMETER_BLOCK_FOR_SPECIFIC_DRIVE EQU 32h ; DOS 2+
21GET_INTERRUPT_VECTOR EQU 35h ; DOS 2+
22SET_CURRENT_DIRECTORY EQU 3Bh ; DOS 2+
23CREATE_OR_TRUNCATE_FILE EQU 3Ch ; DOS 2+
24OPEN_EXISTING_FILE EQU 3Dh ; DOS 2+
25CLOSE_FILE EQU 3Eh ; DOS 2+
26READ_FROM_FILE_OR_DEVICE EQU 3Fh ; DOS 2+
27WRITE_TO_FILE_OR_DEVICE EQU 40h ; DOS 2+
28SET_CURRENT_FILE_POSITION EQU 42h ; DOS 2+
29CHECK_IF_BLOCK_DEVICE_REMOTE EQU 4409h ; DOS 3.1+
30GET_CURRENT_DIRECTORY EQU 47h ; DOS 2+
31TERMINATE_WITH_RETURN_CODE EQU 4Ch ; DOS 2+
32FIND_FIRST_MATCHING_FILE EQU 4Eh ; DOS 2+
33FIND_NEXT_MATCHING_FILE EQU 4Fh ; DOS 2+
[592]34GET_EXTENDED_ERROR_INFORMATION EQU 59h ; DOS 3.0+
[41]35
36; DOS errors
[589]37ERR_DOS_FUNCTION_NUMBER_INVALID EQU 01h
38ERR_DOS_INVALID_DRIVE EQU 0Fh
[41]39ERR_DOS_DRIVE_NOT_READY EQU 15h
40
41
42; DOS Program Segment Prefix (PSP, first 256 (100h) bytes on top of program)
43struc PSP
44 .int20hInstruction resb 2
45 .wSizeOfMemoryInParagraphs resb 2
46 .reservedAt4h resb 1
47 .callToDosFunctionDispatcher resb 5
48 .fpInt22hTerminate resb 4
49 .fpInt23hCtrlC resb 4
50 .fpInt24hCriticalError resb 4
51 .reservedAt16h resb 22
52 .wEnvironmentSegment resb 2
53 .reservedAt2Eh resb 34
54 .int21hAndRetfInstructions resb 3
55 .reservedAt53h resb 9
56 .FCB1 resb 16
57 .FCB2 resb 20
58 .DiskTransferArea:
59 .bCommandLineLength resb 1
60 .szCommandLine resb 127
61endstruc
62
63
64; DOS DTA (Disk Transfer Area)
65struc DTA
66 ; Undocumented fields
67 .reservedAt0h resb 21
68 ; Documented fields
69 .bFileAttributes resb 1 ; 15h, Attribute of matching file
70 .wFileTime resb 2 ; 16h, File time
71 .wFileDate resb 2 ; 18h, File date
72 .dwFileSize resb 4 ; 1Ah, File size in bytes
73 .szFile resb 13 ; 1Eh, ASCIZ filename + extension
74endstruc
75
76
77%endif ; DOS_FUNCTIONS_INC
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